It's chilly in Britain right now, but spare a thought for the residents of Oymyakon, Russia, widely recognised as the coldest inhabited place on Earth.

How cold is it? Right now it's a relatively balmy −44°C. That's some way off its record, −67.8°C, the lowest ever reading outside Antarctica. By comparison, Chicago, thanks to the polar vortex, is experiencing lows of −27°C today.